In this file, you will receive 12 complex diagrams (10 Parallel Lines/Triangles and 2 complex circle diagrams.) All diagrams can easily have missing values manipulated in MS Word. These diagrams can be given out as a single worksheet or pasted into your document. Diagrams could easily be screenshot/cropped and enlarged or minimized to fit your space. In the past, I have put these up on the whiteboard via projector and left them as a bellringer to be worked on in front of my classes. When ac